STMicroelectronics’ new inertial modules
enable AI training inside the sensor
On-chip signal processing core, programmable with ST’s NanoEdge
The ISM330ISN always-on 6-axis inertial measurement unit (IMU) for movement and position sensing uses its embedded intelligence to deliver unrivaled performance and accuracy for its size and power. Ideal for IoT and industrial applications, ST’s new IMU sets to accelerate response time and extend battery life in equipment such as condition monitors for predictive maintenance, as well as battery-operated asset trackers and industrial applications such as robots.
The intelligence built into the ISM330ISN enables smart devices to perform advanced motion-detection functions in the sensor without interaction with the external microcontroller (MCU), thus saving power at system level. ST’s approach integrates a specialized processor, the ISPU, in a small area directly on the sensor chip, optimized for machine-learning applications. This enables the ISM330ISN module to have a 50% smaller footprint and consume 50% less power than a typical co-packaged MCU.
Developers can program the ISPU using ST’s
“Intelligence formerly implemented at the network edge, in an application processor, is now moving to the deep edge, inside the sensor,” said
While presenting new AI-powered creative opportunities, the ISM330ISN has the same 3mm x 2.5mm x 0.83mm package outline as conventional inertial modules. Hence designers can upgrade their products quickly and cost-effectively with no obligation to change an established circuit board layout.
The ISM330ISN is covered by ST’s 10-year longevity program, which provides long-term availability assurance for product designers and manufacturers.
Further technical information
The ISM330ISN is part of ST’s iNEMO family of IMUs. It contains a 3-axis accelerometer and 3-axis gyroscope with low-noise sensing performance, and an output data rate (ODR) of 6.6kHz. With the ISPU, the sensor ensures consistently high accuracy while consuming only 0.59mA in combination mode with the accelerometer and gyroscope active.
ST’s ISPU architecture, based on digital signal processing (DSP), is extremely compact and power-efficient, with 40Kbytes of RAM and occupying just 8000 gates on the sensor die. Performing floating-point operations with single-bit precision, ISPU is ideal for machine-learning applications and binary neural networks.
ST’s ISPU and the NanoEdge.AI tools have been shortlisted for the Embedded Award at
The ISM330ISN is scheduled to enter production in H2 2022 and will be available from st.com or distributors for
For more information please visit www.st.com/ispu.
You can also read our blogpost at https://blog.st.com/ism330is-onlife/
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Jun 16 2022-- ISM330ISN IMU with ISPU_FINAL FOR PUBLICATION
Jun 16 2022-- ISM330ISN IMU with ISPU_IMAGE
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